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https://github.com/python-telegram-bot/python-telegram-bot.git
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131 lines
5.4 KiB
Python
131 lines
5.4 KiB
Python
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#!/usr/bin/env python
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#
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# A library that provides a Python interface to the Telegram Bot API
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# Copyright (C) 2015-2024
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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"""This module contains the ChatBoostHandler class."""
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from typing import Final, Optional
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from telegram import Update
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from telegram.ext._handlers.basehandler import BaseHandler
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from telegram.ext._utils._update_parsing import parse_chat_id, parse_username
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from telegram.ext._utils.types import CCT, HandlerCallback
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class ChatBoostHandler(BaseHandler[Update, CCT]):
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"""
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Handler class to handle Telegram updates that contain a chat boost.
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Warning:
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When setting :paramref:`block` to :obj:`False`, you cannot rely on adding custom
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attributes to :class:`telegram.ext.CallbackContext`. See its docs for more info.
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.. versionadded:: NEXT.VERSION
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Args:
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callback (:term:`coroutine function`): The callback function for this handler. Will be
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called when :meth:`check_update` has determined that an update should be processed by
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this handler. Callback signature::
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async def callback(update: Update, context: CallbackContext)
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The return value of the callback is usually ignored except for the special case of
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:class:`telegram.ext.ConversationHandler`.
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chat_boost_types (:obj:`int`, optional): Pass one of
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:attr:`CHAT_BOOST`, :attr:`REMOVED_CHAT_BOOST` or
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:attr:`ANY_CHAT_BOOST` to specify if this handler should handle only updates with
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:attr:`telegram.Update.chat_boost`,
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:attr:`telegram.Update.removed_chat_boost` or both. Defaults to
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:attr:`CHAT_BOOST`.
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chat_id (:obj:`int` | Collection[:obj:`int`], optional): Filters reactions to allow
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only those which happen in the specified chat ID(s).
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chat_username (:obj:`str` | Collection[:obj:`str`], optional): Filters reactions to allow
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only those which happen in the specified username(s).
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block (:obj:`bool`, optional): Determines whether the return value of the callback should
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be awaited before processing the next handler in
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:meth:`telegram.ext.Application.process_update`. Defaults to :obj:`True`.
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.. seealso:: :wiki:`Concurrency`
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Attributes:
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callback (:term:`coroutine function`): The callback function for this handler.
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chat_boost_types (:obj:`int`): Optional. Specifies if this handler should handle only
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updates with :attr:`telegram.Update.chat_boost`,
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:attr:`telegram.Update.removed_chat_boost` or both.
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block (:obj:`bool`): Determines whether the callback will run in a blocking way.
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"""
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__slots__ = (
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"_chat_ids",
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"_chat_usernames",
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"chat_boost_types",
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)
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CHAT_BOOST: Final[int] = -1
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""" :obj:`int`: Used as a constant to handle only :attr:`telegram.Update.chat_boost`."""
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REMOVED_CHAT_BOOST: Final[int] = 0
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""":obj:`int`: Used as a constant to handle only :attr:`telegram.Update.removed_chat_boost`."""
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ANY_CHAT_BOOST: Final[int] = 1
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""":obj:`int`: Used as a constant to handle both :attr:`telegram.Update.chat_boost`
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and :attr:`telegram.Update.removed_chat_boost`."""
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def __init__(
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self,
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callback: HandlerCallback[Update, CCT, None],
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chat_boost_types: int = CHAT_BOOST,
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chat_id: Optional[int] = None,
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chat_username: Optional[str] = None,
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block: bool = True,
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):
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super().__init__(callback, block=block)
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self.chat_boost_types: int = chat_boost_types
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self._chat_ids = parse_chat_id(chat_id)
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self._chat_usernames = parse_username(chat_username)
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def check_update(self, update: object) -> bool:
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"""Determines whether an update should be passed to this handler's :attr:`callback`.
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Args:
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update (:class:`telegram.Update` | :obj:`object`): Incoming update.
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Returns:
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:obj:`bool`
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"""
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if not isinstance(update, Update):
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return False
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if not (update.chat_boost or update.removed_chat_boost):
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return False
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if self.chat_boost_types == self.CHAT_BOOST and not update.chat_boost:
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return False
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if self.chat_boost_types == self.REMOVED_CHAT_BOOST and not update.removed_chat_boost:
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return False
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if not any((self._chat_ids, self._chat_usernames)):
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return True
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# Extract chat and user IDs and usernames from the update for comparison
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chat_id = chat.id if (chat := update.effective_chat) else None
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chat_username = chat.username if chat else None
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return bool(self._chat_ids and (chat_id in self._chat_ids)) or bool(
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self._chat_usernames and (chat_username in self._chat_usernames)
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)
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